The most important moment in the construction of any structure is the creation of a foundation, without which the construction of the building is impossible. It is the stability and durability of the building that depends on the strength of the foundation. Thoroughness, correct calculation allowed our ancestors to build structures that delight us with their appearance, to this day. This is largely due to a properly prepared foundation. And it does not matter where the structures were built: in the swamps of St. Petersburg, in the water of Venice or in the desert near Cairo. As a material for the foundation, substances that are resistant to the destructive effect of moisture, which include brick, concrete and reinforced concrete are used as a material.